10pcs/lot Metric Threaded Slotted Flat Countersunk Head Machine Screw Bolt M1.6 M2 M2.5 M3 M4 M5 M6

10pcs/lot Metric Threaded Slotted Flat Countersunk Head Machine Screw Bolt M1.6 M2 M2.5 M3 M4 M5 M6

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